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Ascending triangle pattern

Flat resistance with rising support — buyers stepping up into a ceiling. ~83% break-even rate and a ~43% average rise; usually resolves to the upside.

7 min read Pattern Deep-Dives
83%
Break-even rate
+43%
Average rise
~70%
Target hit rate
Up
Typical breakout direction

// key takeaways

  • ▸ A flat horizontal resistance with a rising trendline of higher lows.
  • ▸ Higher lows show buyers getting more aggressive into the ceiling.
  • ▸ Confirmation is a close above the flat resistance with volume.
  • ▸ Target = triangle height projected up from the breakout.

// figure: ascending triangle pattern

figure.svg
Ascending triangle — flat resistance, higher lows, upside break.

How it forms

Price repeatedly tests the same resistance level while each pullback bottoms higher than the last. That rising support squeezes price into the ceiling — buyers are willing to pay up sooner each time — and the pattern usually resolves with an upside breakout.

The trading playbook

  • › Entry — on a close above the flat resistance with a volume spike, or on the retest of that level as new support.
  • › Stop — below the most recent higher low or the rising trendline.
  • › Target — measure the tallest part of the triangle and project it up from the breakout.

Ascending vs descending

The mirror image — a descending triangle (flat support, falling highs) — leans bearish, though it counter-intuitively breaks upward a meaningful share of the time. In both, trade the confirmed break, not your bias about which way it 'should' go.

// common mistakes

  • ✕ Front-running the breakout inside the triangle.
  • ✕ Ignoring a low-volume break that quickly fails.
  • ✕ Assuming the flat side must break — always wait for the close.

Frequently asked

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// related lessons

Head & shoulders pattern

The most recognised reversal in trading: three peaks with a higher middle, a neckline, and a measured downside target. ~81% break-even rate on Bulkowski's data.

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Double bottom (W) pattern

Two failed attempts at the same low that flip a downtrend. The Eve & Eve variant ranks 5th of 39 bullish patterns; ~84% break-even, ~39% average rise.

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Bull flag pattern

A sharp rally, a tight orderly pullback, then continuation. The high-and-tight variant is elite; standard bull flags carry a ~44% break-even failure rate — so confirmation matters.

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Cup & handle pattern

A rounded base followed by a small pullback handle, then a breakout. Ranked 3rd of 39 bullish patterns by Bulkowski — averaging a 54% rise on 913 trades.

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Double top (M) pattern

Two failed attempts at the same high that flip an uptrend. Ranked 19th of 36 bearish patterns; ~75% break-even rate and a ~15% average decline.

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Falling wedge pattern

Two down-sloping, converging trendlines that usually resolve upward. A bullish pattern where selling exhausts into the apex — confirm with a breakout on volume.

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Bull pennant pattern

A brief converging-triangle pause inside an uptrend after a sharp pole. Breaks up only ~57% of the time, so volume confirmation is essential.

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Triple bottom pattern

Three failed tests of the same support that build a firm base. ~13% failure, ~46% average rise and a ~74% target-hit rate on 2,500+ Bulkowski trades.

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Educational content only — not financial advice. Pattern statistics reference Thomas Bulkowski (thepatternsite.com) and published technical-analysis literature.